Lint removal means for bobbin winding machines



Feb. 1, 1949. R, P, DRAK 2,460,736

LINT REMOVAL MEANS FOR BOBBT IN WINDING MACHINES I Filed Nov. 22, 1946 2 Shets-Sheet l 1 35 62a jz l4 3 6 29 A 7 l w 1 s #5 15 v /2 O 45 Z0\ 2/ 32 I; I .7

3 q za g I 24 J INVENTOR.

Russd/ P DRAKE A T TUHNE Y5 Feb. 1, 1949. R. P. DRAKE 2,460,736

LIN'I REMOVAL MEANS FOR BOBBIN WINDING MACHINES Filed Nov. 22, 1946 2 Sheets-Sheet 2 Patented Feb. 1, 1 949 Uirs STAT

LINT REMOVAL MEANS FOR BOBBIN WINDING MACHINES Russell P. Drake, Caledonia, 111., assignor to Barher-Colman Company, Rockford, 111., a corporation of Illinois ApplicationNovember 22, 1946, Serial No. 711,782

17 Claims.

The invention pertains to bobbin winding machines of the type comprising a plurality of laterally spaced winding units each comprising means for rotatably supporting the bobbins to be wound, a yarn traversing device movable axially of the bobbin during the winding operation, a support for a yarn mass constitutinga source of supply of yarn to be Wound, and a yarn tensioning device through which the yarn passes into operative association with the traversing device; and the invention especially concerns an exhaust system by which lint produced at each of said units as an incident to the travel of the yarn at high speed from its sources of supply to the bobbin is effectually removed so as to avoid periodic interruptions in the operation of the machine as wellas to insure that accumulations of lint shall not be deposited upon and incorporated in the yarn mass being wound.

The object of the invention thus generally set forth, together with other and ancillary advantages, is attained by the construction and arrangement shown by way of illustration in the accompanying drawings, in which:

Figure l is a fragmentary side elevational view of a bobbin winding machine equipped with an exhaust system embodying my invention.

Fig. 2 is a fragmentary plan view of such a,

machine.

9 Fig. 3 is a side elevational view with portions in section, showing on a somewhat enlarged scale a winding spindle and its associated traversing and yarn tensioning devices, and illustrating in particular the collection of lint from these devices.

Fig. 4 is a fragmentary vertical section taken approximately in the plane of line 4-4 of Fig. 1.

Fig. 5 is a fragmentary perspective view showing the collection of lint from the yarn tensioning device.

The improved lint exhaust system is herein shown for purposes of illustration embodied in a bobbin winding machine of the general character disclosed and claimed in Marcellus Patent No. 2.409.639, issued October 22, 1946. Generally stated, it comprises a horizontally elongated frame HI having mounted thereon in laterally spaced relation a series of Winding units generally designated H. Each unit comprises means rotatably supporting a bobbin to be wound and including a horizontally disposed winding spindle 62; a traversing cam l3 encircling the bobbin and mounted upon a slide M for movement axially of the bobbin; a supporting means [5 for winding operation, the traversing cam is rotated unidirectionally. It has a leading spiral cam surface l9 engaging with the yarn to effect a traversing thereof through a relatively short stroke axially of the spindle while the cam is ad vanced continuously along the spindle thereby producing a filling wound bobbin. The means for rotating the spindle and the traversing cam is not shown. It may be of the character disclosed in said Marcellus application.

The machine is intended for operation at high speed and it will accordingly be evident that the engagement of the running strand with the traversing cam 13 is productive of a substantial amount of lint. Similarly, in unwinding the yarn from the yarn mass a the yarn whips rapidly about the yarn mass so that the lint is produced. in substantial volume at this point. Finally in. the passage of the yarn through the yarn tensioning device IS, a substantial amount of lint is created. In carrying out my invention, I pro vicle for the effectual withdrawal of lint at the three points referred to.

The exhaust system comprises, in general, a

suction fan 28 driven by an electric motor 2| and.

having an intake chamber 22 and anoutlet duct 23, the latter discharging into a collector 24. The

fan and collector are designed for incorporation in the lower portion of the machine frame, and the intake chamber 22 is connected with the several points at which the lint is produced as will.

presently appear.

Referring now to Fi g. 3 of the drawings,- a..- hood. 25 herein in the form of a cylinder is mounted on thetraverse slide l4 through. the

medium of a depending support 26 constituting a casing for enclosing the gearing by which the traversing cam is driven. The cylinder is closed at its rear ,end by the support 26 and is open at its forward end as indicated at 21.

therewith at one side thereof .is a hollow mem- Its upper, side is slotted as at 28 for the passage of the yarn:

eration.

her 29 opening rearwardly into an exhaust tube 30 having a telescoping fit in a stationary exhaust pipe 3| terminating at its rear end in a manifold 32 extending lengthwise ofthe machine rear:

wardly of the units. This manifold is stationarily supported on themachine frame by'brackets 32a.

At one end, the m'anifold is connectednby a pipe 33 to the intake chamber 22 of theexhaust fan 20, and as seen in Fig. 2 the manifold tapers toward the opposite end so as to equalize the suction on the hoods or cylinders 25. It will be understood that thetelescoping connections be: tween the tubes .30 and pipes 3| permit of axial movement of the hoods or cylinders 25 and their associated members 29 during the winding op 'For the collectionof lint producedby the passage of yarn through the yarn tensioning device IB, I provide a hood 34 having an outlet conduit 35 terminating at its lower end in the exhaust tube 30. The. tensioning device comprisesas'in: conventional devices .of' this type a plurality; of parallel rods or fingers 36; one of which is stationary and: the others movable. Be cause convenient access to the device, is desirable, the hood 34-is in the form of a generallyU-shaped member (Fig. 5); opening forwardly and comprisingarear wall '3l,--end walls 38anda bottom wall as. [Thelatterhas an opening 40 communicatin-g with the outlet conduit'35.

.produced in the unwinding of the yarn from the yarn mass 0; is collected and-withdrawn byn eansincluding a; hood 91, one for each yarn m ass,. ,and one'pr moreexhaust manifolds. Each hoodisinthe'form of a cylindrical casing (Fig. 1) or a diameter somewhat larger than the yarn mass auandhaving. ayertically elongated open- As shown in Fig. 2, two

Iz4lifi1ihP-ffiitt e exhaust maniffolds 43; and l l are provided, each serving a 1 group, of four windi-ng units. Each of the hoods or casings M communicates through as, rear opening d z withits corresponding mani- 'fold, and the two manifolds are respectively connected to thefan, exhaust chamber 22- byfmeans ofexhau'st pipes 45 and' dopening into the bottoms of the mahifol(issubstantially centrallyv thereof. Each (afthe casings 4 i opens upwardly tdpr mitj of easy insertion and removal of the V yarn mass dgftherunning strand passingupward if v hroug hthis openend of thecasing whence it to equalizing devic generally designated '41 before passing downwardly to the yarn tensioningdeyice Hi. To collect stray lint in the region about the yarn masses (1, I preferably prov'id hoods'd'l'. These trays are interposed between the hoods {4i ,and the supporting frame bar 54 upon winch the" casings areflmounted. The trays e telnd lengthwise oi the machine and also forwardly somevdistancebeyond the casings 4 l Ac.-

cumulations' or lint deposited inthe tray are w d wni t e ca n thi u h pe n V the ower forward portions thereof and thence to .the.

d manifolds 43 M; To facilitate movement'pf the lint collectingin the tray 48 into the openings 49; a conventional oscillating fan centrally thereof on;a bracket 5]; 7

It will be seen that thehoods 25, (Hand 4| are constructed and connected to the exhaust system so asnot to interfere with the normal operation of: or access tdtli devices with which the hoods are respectively associated. The location of the exhaust fan and lint collector in th base of the machine is; advantageous because noadditlonal ganelongated tray 8 m each group of four 1. 'In a bobbin winding machine having means rotatably supporting a bobbin to be wound, a support mounted for movement in a direction lengthwise of the bobbin and adjacent thereto, a yarn traversing device mounted on said support, yarn supply means including a support for a yarn mass, and a tensioning device through which a strand of yarn leading from said yarn mass passes into operative association with the traversingxdevice; the combination of lint removing means comprising an upwardly opening hood enclosing the yarn mass laterally thereof, hoods partially enclosing said yarn tensioning device and said yarn traversing device respectively, and an exhaust system connected with the respective hoods and operative to withdraw lint accumulatingtherein,

2. In a bobbin winding machine having means rotatably supportinga' bobbin to be wound, a support: mounted for movement in a. direction lengthwise of the bobbin" and adjacent thereto, and yarn traversing and yarn. tnsioning devices:

mounted on said support;- lint exhaust means comprising a hoodassociated withea'c'h of said devices; and an, exhaust system connected with the respective hoods andoperative'to withdraw lint accumulating therein;

3-5 In. a bobbin-winding machine having means rotatably supporting albobbin to be wound, a support mountedfor movement" .in'ia direction lengthwise of the hobbit: and adjacent thereto, and yarn traversing and yarn tensioning devices mount-ed on said support; lint removing means comprising a-hood partially enclosing said yarn te'nsioning device and a second hood associated 5 0 is mounted abovathe machine substantially;

with said traversing device, and an exhaust system including a stationary exhaust pipe and an exhaust tube communicating with the respective hoods and havinga' telescoping connection with said stationary pipe.

4. In abobb'in winding machine having means rotatably supporting a bobbin-to be wound, a support moiinted for .movement in a direction lengthwise of the bobbinand adjacent thereto;

yarn traversing 'and yarn tension'in'g devices mounted on said support; lint removing means comprising a, stationary exhaust pipe, an exhaust tube havingia telescoping fit with said pipe, a

hood at least" partially encircling said yarn tensioning device and having an outlet conduit connected with said discharge tube, and a hood at least partially encircling said yarn traversing de- 7 vice and connected with said tube for the passage of lint thereto.

5. In a bobbin winding machine having means rotatably supporting a bobbin to be wound, a support mounted for movement axially of the bobbin, a yarn tensioning'device mounted on said supportfa hood; at leastpartially enclosing said yarn tensioning devicaand an exhaust system connected with-said h'o'odfor the removal of lint therefrom and including a manifold, and a discharge conduit connected with said hood and having an extensible connection with said manirdid.

6. In a bobbin winding machine having means rotatably supporting a bobbin to be wound, a support mounted for I nov einent in a direction lengthwise of the bobbin and adjacent thereto, yarn traversing and tensioning devices mounted on said support for movement therewith, and iiifi ans for exhausting lint produced adjacent each of said devices comprising a stationary exhaust pipe and an exhaust tube movable with said support and having a telescoping pipe connection with said pipe.

'7. In a bobbin winding machine having means rotatably supporting a bobbin to be wound, a support mounted for movement lengthwise of the bobbin, mounted on said support in encircling relation to the bobbin, a hood also mounted on said support and encircling said traversing cam, and an exhaust system connected with said hood for the removal of lint therefrom.

3. In a bobbin winding machine having means for rotatably supporting a bobbin to be wound, a support mounted for movement longitudinally of the bobbin, a cylindrical yarn traversing cam mounted on said support in encircling relation to the bobbin, a hood also mounted on said support and encircling said traversing cam, and an exhaust system connected with said hood for the removal of lint therefrom comprising a stationary manifold, a hollow member having one end opening into said hood, and an extensible pipe connection between the other end of said member and said manifold.

9. In a bobbin winding machine having means rotatably supporting a bobbin to be wound, a support movable lengthwise of the bobbin, a cylindrical traversing cam mounted on said support and encircling the bobbin, a hood enclosing the traversing cam laterally thereof and open at its forward end, said hood having a slot in one side for the passage of yarn into operative association with the traversing cam, a. hollow member mounted on said support and communicating with said hood through said slot, and an exhaust system connected with said member.

10. In a bobbin winding machine having means supporting a bobbin for rotation on a horizontal axis, a support movable lengthwise of the bobbin, a traversing cam rotatably mounted on said support and encircling the bobbin, means for supporting a yarn mass above the bobbin in vertically spaced relation thereto, and means for collecting and removing lint formed adjacent the traversing device including a hood enclosing the traversing cam laterally thereof and open at its forward end, said hood having a slot in its upper side for the passage of yarn from the yarn mass to the bobbin with the strand disposed in operative association with the traversing cam, and an exhaust member communicating with said hood through said slot.

11. In a bobbin winding machine having means rotatably supporting a bobbin to be wound, a support mounted for movement axially of the bobbin, a yarn traversing device mounted on said support, a yarn tensioning device also mounted on said support, a hood enclosing said yarn tensioning device and comprising a generally U- shaped member having a bottom wall, a discharge conduit opening into said bottom wall, and an exhaust system connected with said conduit for the removal of lint from the hood.

12. In a bobbin winding machine having means rotatably supporting a bobbin to be wound, a support mounted for movement lengthwise of the bobbin, a yarn tensioning device mounted on said support and comprising a plurality of parallel fingers through which the running strand a cylindrical yarn traversing cam passes on its way to the bobbin, a U-shaped member mounted on said support and partially enclosing said device so as to expose said fingers, and an exhaust system connected with said member for removal of lint therefrom.

13. In a bobbin winding machine comprising a frame, means rotatably supporting a bobbin to be Wound, means on said frame for supporting a ,yarn mass, an upwardly opening hood encircling the yarn mass, and lint removing means including a hollow member disposed at one side of said hood and communicating therewith and an exhaust system connected with said hollow member.

14. In a bobbin winding machine having a frame, a series of winding units spaced apart lengthwise of the frame and each having means rotatably supporting a bobbin to be wound, and means supporting a yarn mass for supplying yarn to the bobbin; an upwardly opening hood encircling the yarn mass, a manifold extending 1ongitudinally of the frame and communicating with the respective hoods, and lint removing means connected with said manifold.

15. In a bobbin winding machine having an elongated frame, means for supporting a plurality of yarn masses in spaced relation along the frame with the yarn masses disposed on vertical axes, an upwardly opening hood encircling each of the yarn masses, a tray underlying said hoods and extending forwardly therefrom, said hoods having openings at their lower ends adjacent the tray, and exhaust means including a manifold communicating with the several hoods at one side 1 thereof.

16. In a bobbin winding machine having an elongated frame, means for supporting a plurality of yarn masses in spaced relation along the frame with the yarn masses disposed on vertical axes, an upwardly opening hood encircling each of the yarn masses, a tray underlying said hoods and extending forwardly therefrom, said hoods having openings at their lower ends adjacent the tray, exhaust means including a manifold communicating with the several hoods at one side thereof, and a fan for directing a current of air downwardly upon said tray.

7. In a bobbin winding machine comprising an elongated frame, a series of winding units disposed in laterally spaced relation lengthwise of the frame and each comprising means for supporting a bobbin to be wound for rotation on a horizontal axis and means supporting a yarn REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 2,057,139 Eaddy Oct. 13, 1936 2,120,888 Eaddy June 14, 1938 

